Category: Environment

We Are in the Anthropocene Epoch

Human civilization has undoubtedly changed the surface of the planet on a massive scale. There will be evidence of our civilization’s impact for millions of years to come. This may not strike you as good news considering it implies we’ve altered the planet in a way only nature itself could have done.

The good news comes from the fact that the Anthropocene Working Group has reached the conclusion that we are indeed in this epoch. This means that geological research and theory has a new intellectual framework to better our understanding of the world and how we as a species interact with it.

“Like any geological boundary, it is not a perfect marker – levels of global radiation really rose in the early 1950s, as salvoes of bomb tests took place,” said Dr Jan Zalasiewicz, of the University of Leicester’s Department of Geology and chair of the Anthropocene Working Group.

“But it may be the optimal way to resolve the multiple lines of evidence on human-driven planetary change. Time – and much more discussion – will tell.”

The term ‘Anthropocene’ was first coined by Nobel Prize winning chemist Paul Crutzen who in 2000 suggested that man’s impact on the world was so substantial that we were no longer in the Holocene – the era which began at the end of the last Ice Age around 11,700 years ago and saw unprecedented human expansion and the emrgency of towns and cities.

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Paris to Spend €100m on Bike Lanes While Reducing Car Traffic

Paris has had a tough time with traffic and pollution in the city due to the number of cars. They have launched many environmentally friendly intitaves to curb the use of cars while making alternative transit solutions to cars more appealing. It’s working and is already inspiring other cities to follow suit. Still, traffic in France’s capital is still quite bad so the mayor as launched a new program investing €100m on new bike lanes!

“I want diesel cars out of Paris by 2020 and, if possible, beyond the peripherique,” said the mayor, referring to the city’s constantly choked ring road.

“Today, 60 per cent of Parisians don’t have their own car, whereas in 2011, it was 40 per cent. It’s moving quickly,” she said.

In proposing a raft of anti-pollution measures, Ms Hidalgo is building on the efforts of her predecessor and mentor, the former Paris mayor Bertrand Delanoe.

He championed bike and car rental schemes, expanded bus and bicycle lanes, and reduced speed limits, as he sought to wean Parisians off cars in a bid to make the city more liveable.

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Slow Increasing Carbon Waste by Growing Cities

People living in cities have a lower carbon footprint than those in the suburbs and rural areas. Some people find this rather counter intuitive for reasons I don’t fully understand. There are researchers looking into the future of our global carbon footprint and they have concluded that if we increase the percentage of people in urban places instead of suburban/rural we can lower the rate of wasteful carbon increase.

By taking these key steps, particularly in Asia, Africa and the Middle East, the analysis concluded that the world’s cities could limit themselves to using 540 exajoules of energy in 2050 (it takes the U.S. about three weeks to produce enough crude oil to generate 1 EJ of energy). That’s a lot of energy—more than double cities’ 2005 energy demand of 240 EJ. But it’s a quarter less than the projected demand of 730 EJ under the business-as-usual scenario analyzed.

Given that most of the energy used by humanity today comes from fossil fuels, improving the energy efficiency of cities could deliver big climate benefits. Cities account for so much of the world’s energy use that a recent U.N climate report concluded they’re responsible for three quarters of yearly carbon dioxide pollution.

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More People are Employed in Green Energy Than in the Tar Sands

Despite the fact that the tar sands get more subsidies than green energy solutions in Canada, the green energy providers employ more people. Clean Energy Canada released a report today that examines the state of green energy in Canada and they have some remarkable findings.

“Clean energy has moved from being a small niche or boutique industry to really big business in Canada,” said Merran Smith, director of Clean Energy Canada. The investment it has gleaned since 2009 is roughly the same as has been pumped into agriculture, fishing and forestry combined, she said. The industry will continue to show huge growth potential, beyond most other business sectors, she added.

While investment has boomed, the energy-generating capacity of wind, solar, run-of-river hydro and biomass plants has expanded by 93 per cent since 2009, the report says.

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Growing the Green Roof Industry in North America

Green roofs are great! They help alleviate a lot of issues that arise in urban living while making cities more beautiful. There is growing interest in making sure that urban green roofs take off and it looks like it is working.

While other countries like Germany have been using green roofs since the 1980’s, North America has been playing catch up. Toronto, however, is a city enamoured with renewable energy and sustainability. Ryerson’s engineering building on Church St., the new Forensic Services and Coroner’s Complex and Toronto City Hall are all notable examples of green roof early adopters.

A pioneer in North America, the city requires all new builds with a minimum gross floor area of 2,000m2 to include a portion of vegetation on roof surfaces. It also offers a grant of up to $75/square metre to offset the cost of green-roof installation. Similar incentive programs are being instated in Washington DC, NYC and Chicago, but Toronto is the first to actually mandate builders to include a vegetated roof – or face a hefty fine.

And with good reason. Green roofs divert waste, help manage storm water, moderate ‘urban heat island’ effects and improve air quality. They also reduce noise and can save significant amounts of money. In a warehouse complex, for example, the evaporation characteristics of a green roof can lower the inside temperature from between three to five degrees celsius.

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